Rational design and synthesis of 3-heteroaromatics coumarin molecules with unusual solution and solid dual efficient luminescence

3-Imidazolyl coumarin molecules were synthesized under solvent-free condition and the optical properties both in solution and the solid state were determined. The compounds showed dual efficient luminescence, which were blue fluorescence with the highest fluorescence quantum yield being more than 0....

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Bibliographic Details
Published in:Tetrahedron 2019-05, Vol.75 (21), p.2958-2964
Main Authors: Zhou, Zi-chun, Zheng, An-na, Cui, Yan-hong, Lin, Zhang-qi, Niu, Wen-jie, Zhang, Yong-jian, Gao, Jian-rong, Li, Yu-jin
Format: Article
Language:English
Subjects:
3-Imidazolyl coumarin
Blue fluorescence
Dual efficient luminescence
TD-DFT calculation
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Summary:3-Imidazolyl coumarin molecules were synthesized under solvent-free condition and the optical properties both in solution and the solid state were determined. The compounds showed dual efficient luminescence, which were blue fluorescence with the highest fluorescence quantum yield being more than 0.9 and also exhibited favorable yellow solid-state fluorescence. Additionally, by using density functional theory (DFT) and time-dependent DFT (TD-DFT) calculation, all structures were optimized and the associated optical performances showed similar results as the experimental results. [Display omitted]
ISSN:0040-4020
1464-5416
DOI:10.1016/j.tet.2019.04.034